Going off the grid is great until you realize ... powering modern electric cars. With modern battery chemistries, a hand-carried power bank or power station can hold multiple kilowatt-hours.

In general, a solar battery bank can cost between $10,000 to $25,000 for 10 to 25 kilowatt hours of power. (The US Department of Energy says solar batteries can cost anywhere from $12,000 to $22,000.) ...

Charge.co.za (formerly Zero Carbon Charge) launched South Africa’s first fully off-grid electric vehicle ... It relies almost entirely on solar and battery power. A massive on-site solar ...